Dell Optiplex 780

Selected boot device not available

Strike F1 to retry boot

F2 for setup utility

Press F5 to run on board diagnostics

Please help me this...

anne_droid

3 Apprentice

•

666 Posts

0

May 12th, 2025 13:12

Please can you confirm the Make Model and OS, along with any configuration details like touch screen, backlit keyboard, SFF or tower etc etc.

The message suggests the storage device has failed, but the Diagnostics should confirm this.

If in doubt please ask.

redxps630

9 Legend

•

14.4K Posts

0

May 12th, 2025 17:43

try replace cmos battery w a new one then clear cmos by motherboard RTCRST or CLR CMOS jumper.

(edited)

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